| Si对含铜钢表面高温氧化后铜元素富集的影响 |
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| 引用本文： | 董汉君,张晖,车马俊,何宜柱.Si对含铜钢表面高温氧化后铜元素富集的影响[J].钢铁,2010,45(2). |
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| 作者姓名： | 董汉君 张晖 车马俊 何宜柱 |
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| 作者单位： | 1. 上海梅山钢铁股份有限公司制造部,江苏,南京,210039
2. 安徽工业大学材料科学与工程学院,安徽,马鞍山,243002 |
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| 基金项目： | 安徽省教育厅青年教师资助项目(2007jq1027) |
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| 摘 要： | 研究了Si元素对抑制含铜钢高温氧化后表面铜元素富集的影响。结果表明:添加Si元素使合金氧化后形成较多内氧化产物2FeO.SiO2,该氧化物在生长过程中对基体局部区域形成包裹,可割断液相铜的扩散途径,降低富铜相中Cu的浓度,有利于减轻含铜钢高温氧化后基体表面铜元素偏聚,但同时会导致合金在1 150℃以上高温区抗氧化性能减弱。
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| 关 键 词： | Si 含铜钢 高温氧化 铜富集 |
Effects of Si on Cu Enrichment at Copper-Containing Steel Surface After High Temperature Oxidation |
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| DONG Han-jun,ZHANG Hui,CHE Ma-jun,HE Yi-zhu.Effects of Si on Cu Enrichment at Copper-Containing Steel Surface After High Temperature Oxidation[J].Iron & Steel,2010,45(2). |
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| Authors: | DONG Han-jun ZHANG Hui CHE Ma-jun HE Yi-zhu |
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| Affiliation: | DONG Han-jun1,ZHANG Hui2,CHE Ma-jun2,HE Yi-zhu2 |
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| Abstract: | The effect of Si element on preventing Cu enrichment at the scale/steel interface of copper-containing steel after high temperature oxidation was studied. The results show that addition of Si enhances the formation of internal oxidation product 2FeO·SiO_2 which can reduce the content of Cu in copper-rich phase,as well as cut off diffusion routes of liquid copper by encapsulating the local area of matrix in it. However also the addition of Si is beneficial on reducing copper enrichment at surface matrix, hut would increase oxidation rate of alloys when oxidation tempera- ture is higher than 1150 ℃. |
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| Keywords: | Si copper-containing steel high temperature oxidation copper enrichment |
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